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anonymous

  • one year ago

I'm pretty sure it would be a because it's a negative number but can someone confirm for a medal? Which of the following is irrational? -9 over 5 Square root of 5 7 over 3 Square root of 9

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  1. anonymous
    • one year ago
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    Thank you. But since all the other ones are positive wouldn't the irrational number be the fraction negative 9 over 5

  2. jim_thompson5910
    • one year ago
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    rational means you can write it as a fraction of two whole numbers rational numbers can be negative eg: -2/3

  3. anonymous
    • one year ago
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    Ohhhh so the square root of 9 would be wrong

  4. jim_thompson5910
    • one year ago
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    that is equivalent to 3 which is the same as 3/1 sqrt(9) is rational since 3 is rational

  5. anonymous
    • one year ago
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    But the square root of 5 don't have any whole numbers it would be like 2.5 so wouldn't that one be irrational?

  6. jim_thompson5910
    • one year ago
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    sqrt(5) is irrational. there is no way to write it as a fraction of whole numbers

  7. jim_thompson5910
    • one year ago
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    we can get approximations, but never the exact thing

  8. anonymous
    • one year ago
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    Than you so much(:

  9. jim_thompson5910
    • one year ago
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    you're welcome

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